WSDM Cup 2018

There will be two tasks in WSDM cup 2018, one is conducting song recommendations and the other is making churn prediction based on user history. Participants can choose to compete in one or both of the tasks. The data for the challenges come from KKBOX, a leading music streaming company from Taiwan.

The task winners will be awarded $2500 each. The respective second and third runner-ups will be awarded $1500 and $500. Four travel grants (US$500 each team) for attending the 2018 WSDM Cup Workshop held by KKBOX Group will be offered to the top 4 teams that are ranked among top 10 and consists of all student members except one advisor. The awards are kindly sponsored by KKBOX.

Task 1 - Churn Prediction

In this task, we would like to know whether a user will renew his/her subscription within 30 days after the current subscription expires. To be more specific, the testing data considers only users whose membership expiration dates fall between December, 1st, 2016 and December, 31st, 2016. Participants will use a sampled KKBOX user listening history from 2014-01-01 to 2016-12-31 as training data.

Task 2 - Recommendation System

In this task, the participants are requested to exploit the provided user history and music metadata to develop a recommendation system. A copy of user listening history from 2016/12/01 to 2017/01/31 is given as the training data. Participants are required to predict what songs a set of predetermined users would listen during the period of 2017/02/01 to 2017/02/28.